In Excel, this is tab Prob $2.$

Kelle Carpet and Trim installs carpet in commercial offices.

$$ Peter Kelle has been very concerned with the amount of time it took to complete several recent jobs.

$$ Some of his workers are very unreliable.

$$ A list of activities and time estimates for a new contract are given in the table.

a$)(5$ pts$)$ Draw ON PAPER an AON for this project.

b$)(20$ pts$)$ Find the critical path.

c$)(5$ pts$)$ Compute expected project completion time.

d$)(10$ pts$)$ Compute the project variability.

e$)(5$ pts$)$ What is the probability the project will be completed between $41$ and $44$ days.

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